Wood-scoring device for planes and the like.



C. BODMER.

Woon scoEING DEVIGE EOE PLANES AND TEE LIKE.

APPLICATION FILED NOV. 30. 1909.

968,508. Patented Aug.23,1910.

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CHRISTIAN BODMER, F NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE STANLEY?RULE & LEVEL COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OFCONNECTICUT.

WOOD-SCORING DEVICE FOR PLANES AND THE LIKE.

To all whom @'25 may concern:

Be it known that I, CHRISTIAN BoDMER, a citizen of the United States,residing at New Britain, county of Hartford, State of Connecticut, haveinvented certain new and useful Improvements in l/Vood-Scoring Devicesfor Planes and the Like, of which the following is a full, clear, andexact description.

My invention relates to improvements in wood cutting instruments such asplanes and the like, the object being to provide in such constructions ascoring device or spur to partially cut the wood in advance of the planeiron.

A valuable incident of this invention is the provision of means wherebythe scoring device or spur may be adjusted to cause said cutting edge toproject to a greater or lesser degree from the main body of theinstrument to make a shallow or a deep cut as required and to alsocompensate for variations in length of the spur due to sharpening thelatter from time to time.

In the drawings: Figure l is a side elevation of a plane of the plowtype fitted with my improved scoring device or spur; Fig. 2 is arelatively enlarged detail view of the spur in operative position; Fig.3 is a simiar view showing the spur in non operative position; Fig. 4 isa sect-ion on the line of Fig. 2.

The wood cutting device of the type illustrated in Fig. l is a speciesof plane in which l is the plane body; 2 is the sole portion thereofprovided with the usual throat in which is located the cutting iron 3.In advance of the cutting iron is located a spur, said spur beingarranged in a recess 4 in the side of the sole 2. The spur is held by ascrew 5. The spur construction itself comprises the cutting end 6 andthe head 7 The head 7 is of circular outline preferably and has acentral perforation in which a holding screw 5 is located, said screwtaking into a threaded opening in the sole 2. The recess 4 has itsintermediate-portion conformed to the circular part or head 7 of thespur, thereby relieving the screw in a large measure of strain. Aboveandbelow this circular part the recess is extended to receive the cuttingend 6 of the spur.

As shown in the detail views Figs. 2 and 3, the ends of the recess 4 arediagonally ar- Specication of Letters Patent. Application filed November30, 1909.

Patented Aug. 23, 1910. Serial No. 530,556.

ranged with reference to the base of the sole 2. The outer edge of thespur is arranged obliquely to a radial line from the center of the screw5, the cutting edge itself being preferably somewhat rounded as shownand sharpened so that said cutting edge proper will lie approximately inthe plane of one side of the cutter 3, whereby, when the plane is pushedforwardly, the spur will score the wood directly in advance of one edgeofthe cutter 3. A corresponding spur may be arranged on the oppositeside of the sole 2 to score a corresponding line in line with theopposite edge of the cutter 3. Since lthese spurs correspond adescription land illustration of one 1s sufficient for both. The lowerend of the recess 4 is widened somewhat so as to permit the spur to beswung upon its screw mounting 5 whereby by swinging said spur itscutting edge may be projected more or less as desired. By the particulararrangement shown a forward movement of the plane across a board willproduce through the medium of the spur a score line corresponding indepth to the extent to which the spur is projected.

By reason of the method of mounting the spur there is little or nodanger of dislodgment of the same after it has been adjusted, the cut ofthe spur being an easy draw cut. By this means all chattering of theparts as the plane is advanced over the wood is avoided. The cuttingedge 6 of the spur being formed on a plane oblique to a radial line fromthe center of the screw 5 permits the said spur to be sharpened fromtime to time without grinding away such a portion of the cutting edge as,to render it ineffective. Since even though a portion is ground away,the cutting edge of the spur may be projected to the desired extent bythe swinging movement above referred to. When it is desired to omit thespur, it is simply necessary to withdraw the screw 5 somewhat and swingthe spur from the position indicated in Fig. 2 to that indicated in Fig.3, the cutting end of the spur being then housed in the upper end of therecess 4 and iush with the outer side of the sole.

What I claim is:

l. In a plane,l a main body having a sole portion, a scoring devicecomprising a spur having a head portion, a screw passlng through saidhead portion arranged to adjustably hold said the cutting end of saidspur extending radially from said head portion, the cutting edge of saidcutting end being arranged obliquely to said radius, an inclined recessin said body arranged to receive said spur, the lower part of saidrecess being wider than the cutting end of said spur to permit thecutting edge of said spur to be projected more or less by an angularshifting of said spur in said recess.

2. A scoring device for al plane or the like comprising a spur having amain body of circular outline, a central passage arranged to receive aholding screw, a cutting portion extending' radially from said mainbody, the cutting edge of said cutting portion being oblique to theradius, a plane body having a sole portion, a recess in the side of saidportionarranged to receive said scoring device, a portion of said recessbeing shaped to snugly receive the main body of the scoring device,another portion of said recess eX- tending downwardly and rearwardlyfrom the first' mentioned portion and being wider than the cutting endof said spur to permit the latter to be adjusted by the shifting of saidspur angularly relatively to the center of the head and a holding screwarranged to spur against said body, l

pass concentrically through the head into the sole portion of said body.

3. In a plane, a main body having a sole portion, a scoring devicecomprising a spur, a screw passing through said spur and arranged toadjustably hold said spur against said body, said spur extendingradially from said screw, said spur having at its outer end a cuttingedge, said cutting edge being oblique to the radius of said spur, saidbody having a recess in its side arranged to receive said spur, thelower end of said recess being wider than said spur to permit thecutting edge of the latter to be projected more or less by an angularshifting of said spur in said recess.

4l. A scoring spur for planes, a main body portion having a screwpassage and having a radially extending arm at one side of said screwpassage, a cutting edge at the outer end of said arm, said edge beingoblique to the radius of said arm, one end of said edge being nearer tothe said screw passage than the other end of said edge.

CHRISTIAN BODMER.

lllitnesses I. W. CHAPMAN, W. J. VORAM.

